Finding the Fourth Proportional to 1,411.45, 1,948.77 and 1,079.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.45 : 1,948.77 = 1,079.30 : x
2. Step 2: Convert to fraction form
   1,411.45/1,948.77 = 1,079.30/x
3. Step 3: Cross multiply
   1,411.45x = 1,948.77 × 1,079.30
4. Step 4: Simplify right side
   1,411.45x = 2,103,297.72
5. Step 5: Solve for x
   x = 2,103,297.72/1,411.45
6. Step 6: Final answer
   x = 1,490.17